JP7292303B2 - Glass plate package - Google Patents

Description

The present invention relates to a glass plate package.

As is well known, glass plates are used as glass substrates for flat panel displays (FPDs) typified by liquid crystal displays, plasma displays, organic EL displays, and the like. Since glass sheets are fragile, the form of packaging of the glass sheets during storage and transportation is extremely important.

Here, Patent Literature 1 discloses a glass plate package suitable for packaging glass plates as described above. In this package, rectangular glass plates and protective sheets are alternately laminated in a horizontal position to form a laminate, which is then packed on a pallet. For example, interleaving paper is used as the protective sheet. The protective sheet has protruding portions protruding from the edges of the glass plate. According to such a packing form, the weight of the glass sheet is mainly supported by the main surface of the glass sheet, and in addition, it is possible to cover the edge of the glass sheet with the protruding portion, so that the strength of the glass is weak. There is an advantage that the edges of the plate can be well protected.

JP 2013-224182 A

By the way, in unpacking the glass plate package and taking out the glass plates from the laminate, for example, a take-out form as shown in FIGS. 11 and 12 may be employed.

In this embodiment, as shown in FIG. 11, a robot 300 sucks and takes out the uppermost glass plate 200 from the laminate 100, and as shown in FIG. The bar-shaped robot 500 that pulls out the paper is operated alternately. In this manner, the glass plate 200 and the protective sheet 400 are alternately removed from the laminate 100 . Note that the laminate 100 is loaded on the pallet 600 while being supported from below by the pedestal portion 600a.

When the two robots 300 and 500 are operated, assistance is provided to facilitate taking out the glass plate 200 and the protective sheet 400 respectively.

As shown in FIG. 11 , when operating the robot 300 , the pressing member 700 presses the projecting portion 400 a of the protective sheet 400 protruding from the edge of the glass plate 200 forming the laminate 100 . This prevents the robot 300 from taking out the uppermost glass plate 200 and the protective sheet 400 attached to it together with the uppermost glass plate 200 . On the other hand, as shown in FIG. 12, when the robot 500 is operated, the uppermost protective sheet 400 adsorbed by the robot 500 and the glass plate 200 directly below are peeled off so as not to stick to each other. Gas 800a (for example, air) is injected from the injection nozzle 800 so as to cause the injection.

However, when the above-described configuration is adopted for unpacking the glass plate package, the following problems to be solved have occurred.

When the protective sheet 400 has protruding portions 400a, as shown in FIG. 13, the protruding portions 400a of the protective sheet 400 arranged in the lower layer are bent downward. The bending of the projecting portion 400a causes the following problems. That is, when the robot 500 takes out the protective sheet 400 that was positioned near the bottom layer before unpacking, the bent protruding portion 400a of the protective sheet 400 to be taken out may be the protective sheet 400 or the glass plate that is not to be taken out. It may get caught on the corner of 200. In addition, as shown in FIG. 13, the lower the position of the protective sheet 400, the smaller the radius of curvature of the bent portion. Therefore, the lower the position of the protective sheet 400, the more likely the above-described catching occurs. As a result, the protective sheet 400 slips and shifts with respect to the robot 500, causing a problem that the protective sheet 400 cannot be taken out properly. It should be noted that once an unpacking failure occurs, it becomes necessary to suspend the work for unpacking for a long time (for example, about 0.5 hour), which significantly deteriorates the manufacturing efficiency of the product.

The present invention, which has been devised in view of the above circumstances, is intended to prevent the occurrence of defective removal of the protective sheet due to the bending of the overhanging portion when the glass plate package is unpacked and the glass plate and the protective sheet are removed from the laminate. The purpose is to establish a technique that can be avoided.

In order to achieve the above objects, the present invention provides a laminate in which a rectangular glass plate and a protective sheet having protruding portions protruding from the edge of the glass plate are laminated in a flat position, and a laminate and a pallet for loading a glass sheet package, wherein the pallet includes a support for supporting protruding portions of a plurality of protective sheets included in the laminate from below, and the support includes at least the laminate It is characterized in that it is arranged along the corner of the lowermost glass plate included in the body.

In this configuration, for the plurality of protective sheets included in the laminate, protruding portions protruding from the corner portions of the glass plate in these protective sheets are supported from below by the supporting portions, and the protruding portions are supported from below. bending is avoided. That is, bending of the projecting portion around the corner portion of the glass plate is avoided. As a result, even when the protective sheet located near the bottom layer before unpacking the glass plate package is removed by a robot or the like, the protruding portion is prevented from bending, so the protective sheet to be removed can be easily removed. is prevented from being caught on the protective sheet or the corner of the glass plate, which are not to be taken out. As a result, it is possible to avoid the occurrence of failure to take out the protective sheet.

In the above configuration, the supporting portion has at least one of the ends of one side and the other side forming the corner portion of the lowermost glass plate, the protruding portion having a longer protruding length. preferably along the edge of the

In this way, for each protective sheet, the protruding portion protruding from the end of one side forming the corner portion of the glass plate included in the laminate and the protruding portion protruding from the other side end of the glass plate included in the laminate. The protruding portion having a longer protruding length, which is in a state of being relatively easy to bend, is reliably supported by the supporting portion. As a result, it is possible to efficiently avoid bending of the projecting portion around the corner portion of the glass plate.

In the above configuration, the supporting portion may be arranged only along one of the ends of one side and the other side forming the corner portion of the lowermost glass plate. preferable.

In this way, the supporting portions are arranged only along one end, thereby preventing the pallet structure from becoming complicated due to an increase in the number of supporting portions. In addition, by reducing the number of supporting portions, it is possible to eliminate the risk of dust and the like accumulating on the supporting portions as much as possible. It should be noted that even if the support portion is arranged only along one end portion, it is possible to accurately avoid bending of the protruding portion around the corner portion as described below. First, by supporting the protruding portion protruding from one end portion by the supporting portion, the downward bending of the protruding portion is avoided. Then, as the bending of the protruding portion protruding from one end is avoided, the protruding portion protruding from the remaining one end connected to the protruding portion is naturally formed. downward bending is avoided. In this way, bending of the protrusion around the corner is avoided.

In the above configuration, it is preferable that the pallet has a pedestal that supports the laminate from below, and that the upper end of the support is positioned below the upper surface of the pedestal that supports the laminate.

In this way, the projecting portion can be bent downward to the extent that it does not bend, and the edge of the glass sheet can be covered with the bent projecting portion. As a result, the glass plate can be suitably protected from breakage and scratches originating from the edge. Furthermore, if there is a step between the upper end of the support and the upper surface of the pedestal, the glass plates included in the laminate may shift laterally (horizontally move) due to vibration or the like. However, it is possible to avoid the collision between the supporting portion and the glass plate.

In the above configuration, the support portion is arranged only along the corner portion of the lowermost glass plate, and the pallet includes a regulating member that regulates the horizontal movement of the plurality of glass plates included in the laminate, It is preferable that the regulating member is arranged so as to be positioned between adjacent corner portions of each glass plate included in the laminate.

In this way, since the regulating member is arranged at a position where the supporting portion does not exist, it is possible to avoid bending of the protruding portion around the corner portion of the glass plate and to regulate horizontal movement of the glass plate. It is possible to achieve both efficiently.

According to the present invention, when the glass plate package is unpacked and the glass plate and the protective sheet are removed from the laminate, it is possible to avoid the occurrence of defective removal of the protective sheet due to the bending of the projecting portion.

It is a perspective view which shows the glass plate package which concerns on 1st embodiment. It is a perspective view which shows the pallet with which the glass plate package which concerns on 1st embodiment was equipped. It is a top view which shows the pallet with which the glass plate package which concerns on 1st embodiment was equipped. It is sectional drawing which expands and shows the side periphery of the base part in the glass plate package which concerns on 1st embodiment. FIG. 3 is a plan view showing glass plates and protective sheets included in a laminate provided in the glass plate package according to the first embodiment; It is a top view which shows the modification of the pallet with which the glass plate package which concerns on 1st embodiment was equipped. It is a top view which shows another modification of the pallet with which the glass plate package which concerns on 1st embodiment was equipped. It is sectional drawing which expands and shows the side periphery of the base part in the glass plate package which concerns on 2nd embodiment. It is sectional drawing which expands and shows the side periphery of the base part in the glass plate package which concerns on 3rd embodiment. It is a top view which shows the modification of the pallet with which the glass plate package which concerns on 3rd embodiment was equipped. It is a front view for demonstrating the subject of a prior art. It is a front view for demonstrating the subject of a prior art. FIG. 13 is a cross-sectional view showing an enlarged Z portion encircled in FIG. 12 for explaining a problem of the conventional technology;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, glass plate packages according to embodiments of the present invention will be described with reference to the accompanying drawings.

<First embodiment>
As shown in FIG. 1, a glass plate package 1 according to the first embodiment of the present invention includes a glass plate 3 and a protective sheet 2x in a state in which a protective sheet 2x (hereinafter referred to as a lowermost layer sheet 2x) is arranged as the lowermost layer. A stack 4 in which sheets 2 are alternately stacked in a flat posture and a pallet 5 for loading the stack 4 are provided.

Here, in FIG. 1, for convenience of explanation, the edges of the protective sheets 2 other than the bottom layer sheet 2x are shown flush with the edges of the glass plate 3 without sticking out. However, the protective sheet 2 has a larger area than the glass plate 3, and in fact, the edge of the protective sheet 2 protrudes from the edge of the glass plate 3 (see FIGS. 4 and 5). ). The end portion of the protective sheet 2 protruding from the end portion of the glass plate 3 constitutes a protruding portion 2a.

The thickness of the glass plate 3 constituting the laminate 4 is preferably 0.2 mm to 1.8 mm, more preferably 0.2 mm to 0.5 mm. The glass plate 3 has a rectangular shape, and the length of one side is preferably G5 size (1100 mm to 1300 mm) or more, more preferably G8.5 size (2200 mm to 2500 mm) or more. The density of the glass plate 3 is preferably 2.0 g/cm ³ to 3.0 g/cm ³ .

The thickness of the protective sheet 2 constituting the laminate 4 is preferably 0.05 mm to 0.2 mm, more preferably 0.05 mm to 0.1 mm. The protective sheet 2 has a rectangular shape with an area larger than that of the glass plate 3, and the length of one side is preferably G5 size (1100 mm to 1300 mm) or more, and preferably G8.5 size (2200 mm to 2500 mm) or more. more preferred. In this embodiment, interleaving paper is used as the protective sheet 2 . However, this is not the only option, and a foamed resin sheet or the like may be used instead of the interleaving paper.

The pallet 5 has a base portion 6 to be placed on the floor surface of a factory, a carrier of a transport vehicle, or the like, and a pedestal portion 7 which is arranged on the base portion 6 and supports the laminate 4 from below. . As will be described in detail later, the bottom layer sheet 2x is fixed to the pedestal portion 7. As shown in FIG. Both the base portion 6 and the pedestal portion 7 are integrated by means such as welding, for example. In this embodiment, both the base portion 6 and the base portion 7 are rectangular in plan view (see FIG. 3), and the base portion 7 is formed smaller than the base portion 6 . In this embodiment, the rectangular shape formed by the glass plate 3 and the rectangular shape formed by the pedestal portion 7 have substantially the same area. Also, in the present embodiment, the pedestal portion 7 is stacked on the base portion 6, but this is not the only option. The pedestal portion 7 may be removed and the base portion 6 may function as a pedestal portion.

Each of the four corners of the base portion 6 is provided with an insertion opening 8 into which a support (not shown) can be inserted. The struts attached to the respective insertion openings 8 have the function of supporting the upper glass plate packages 1 from below when the glass plate packages 1 are stacked vertically. Fork holes 9 into which forks of a forklift can be inserted are formed in each of the four side surfaces of the base portion 6 .

A regulating plate 10 is attached to each of the four side surfaces 7a of the pedestal 7 as a regulating member for regulating lateral displacement (horizontal movement) of the plurality of glass plates 3 included in the laminate 4. As shown in FIG. Although the number of regulating plates 10 is not particularly limited, in this embodiment, two regulating plates 10 (eight in total) are arranged on one side surface 7a. Each regulating plate 10 has its lower end portion fixed to the side surface 7a of the pedestal portion 7 with a fastener (for example, a bolt or the like). This regulation plate 10 is removed when the glass plate package 1 is unpacked and the glass plate 3 is taken out from the laminate 4 .

A holding plate (not shown) is arranged on the upper surface of the laminate 4. By fixing this holding plate to the base portion 6 via a fastener (not shown) such as a belt, the laminate 4 is attached to the pedestal. It is held on part 7 . As the pressing plate, a cushioning plate made of foamed resin, which is thicker and harder than the protective sheet 2, or the like is used. Moreover, in order to prevent dust from adhering to the glass plate 3 constituting the laminate 4, the circumference of the laminate 4 is covered with a resin sheet (not shown) as necessary.

As shown in FIG. 2, the pedestal 7 has a structure in which a lattice-shaped base 7x made of metal such as an aluminum alloy and a buffer plate 7y made of rubber, foamed resin, or the like are superimposed. As a result, the upper surface of the buffer plate 7y constitutes the upper surface 7b of the pedestal portion 7 that supports the laminate 4, and the side surfaces of the base 7x and the buffer plate 7y constitute the side surfaces 7a of the pedestal portion 7 connected to the upper surface 7b. ing. Both the regulation plate 10 (not shown because it is removed in the figure) and the holder 11 for fixing only the lowermost layer sheet 2x to the pedestal portion 7, which will be described later, are attached to the base 7x.

Here, in this embodiment, the buffer plate 7y is directly superimposed on the base 7x, but a plate made of aluminum alloy or stainless steel may be interposed between the base 7x and the buffer plate 7y. good. Also, the buffer plate 7y need not consist of a single plate, and may be divided into a plurality of small plates.

As shown in FIG. 3 , holders 11 are arranged on each of two parallel side surfaces 7 a among the four side surfaces 7 a of the base portion 7 . As shown in FIG. 4, the first function of the holder 11 is to sandwich and hold the lowermost sheet 2x (not shown in the figure), thereby fixing the lowermost sheet 2x to the pedestal 7. It has a function as Furthermore, as a second function, it has a function as a supporting portion that supports the protruding portions 2a of the plurality of protective sheets 2 (excluding the bottom layer sheet 2x) included in the laminate 4 from below. This second function prevents the projecting portion 2a from bending downward around the corner portion of the glass plate 3 .

The arrangement of the holder 11 will be described in detail below.

As shown in FIG. 3, the holder 11 is the lowermost glass plate 3 included in the laminate 4 (a two-dot chain line ) and located along each corner. Each corner portion is formed by an end portion 3aa of the side 3a of the glass plate 3 and an end portion 3ba of the side 3b. In this embodiment, the holder 11 is arranged only along the edge 3aa of the two edges 3aa and 3ba. The regulation plate 10 (indicated by a chain double-dashed line in FIG. 1) is arranged between adjacent corners of the glass plate 3 .

FIG. 5 shows the relationship between the glass plate 3 included in the laminate 4 and the protective sheet 2. As shown in FIG. As shown in the figure, in the present embodiment, when the protruding length X from the side 3a and the protruding length Y from the side 3b are compared with respect to the protruding portion 2a of the protective sheet 2, The protruding length X is longer. Therefore, when the protruding length is compared between the two ends 3aa and 3ba, the protruding length (equal to the protruding length X) from the end 3aa is longer. The holder 11 is arranged only along the end portion 3aa having the longer protruding length. The primary purpose of this arrangement is to efficiently avoid bending, since the longer the protruding length, the easier it is to bend. The second purpose is to avoid complication of the structure of the pallet 5 by suppressing the number of holders 11 as much as possible, and to minimize the risk of dust and the like accumulating on the holders 11. in order to eliminate

In view of the above first and second purposes, when the protruding length Y is longer than the protruding length X, as a modification of this embodiment, as shown in FIG. Moreover, it is preferred that the retainer 11 is arranged only along the edge 3ba of the two edges 3aa, 3ba. Moreover, when both the protruding length X and the protruding length Y are excessively long, as another modification of the present embodiment, as shown in FIG. It may be arranged along both ends 3aa and 3ba.

As shown in FIG. 4, the holder 11 protrudes from the end portion of the lowermost glass plate 3 included in the laminate 4 in order to exhibit the first function (function as a fixing portion). It is possible to sandwich the edge of the lowermost layer sheet 2x in its thickness direction. As a result, the ends of the lowermost layer sheet 2 x are fixed on the side surface 7 a of the pedestal portion 7 by the holders 11 .

The holder 11 has a pair of sandwiching portions 11a and 11b for sandwiching the ends of the bottom layer sheet 2x from the front and back. It is possible.

A pair of pinching portions 11a and 11b are connected to each other via a hinge 12. As shown in FIG. The clip portion 11b arranged on the back side of the bottom layer sheet 2x is fixed to the side surface 7a of the pedestal portion 7. As shown in FIG. On the other hand, the pinching portion 11a arranged on the front side of the bottom layer sheet 2x can turn around the shaft 12a provided on the hinge 12, as indicated by the arrow AA in FIG.

When the nipping portion 11a moves to the position indicated by the solid line in FIG. 4 (hereinafter referred to as nipping position) along with the rotation, the pair of nipping portions 11a and 11b cooperate to pinch the end portion of the bottom layer sheet 2x. As will be described in detail later, in the present embodiment, the magnetic force of a magnet (magnet sheet) is used to sandwich the edge of the bottom layer sheet 2x. On the other hand, when the nipping portion 11a moves away from the nipping position due to the rotation, the nipping of the end portion of the bottom layer sheet 2x is released. The pinching portion 11a in a state where the pinching is released can be made to stand by, for example, at a position indicated by a two-dot chain line in FIG. 4 (hereinafter referred to as a standby position). The standby position is sufficiently distant from the pinching position so that the pinching portion 11a does not move due to the magnetic force of the magnet.

The clamping portion 11b includes a side plate 13 directly fixed to the side surface 7a of the base portion 7, a bottom plate 14 extending horizontally continuously from the lower end of the side plate 13, and a resin material attached along the side plate 13 and the bottom plate 14. A material 15 and a magnet sheet 16 attached to the side plate 13 above the resin material 15 .

The side plate 13 and the bottom plate 14 are made of metal such as stainless steel or aluminum alloy. One end of the bottom plate 14 is provided with a shaft 12a extending parallel to the side surface 7a of the base portion 7. As shown in FIG. Although the material of the resin material 15 is not particularly limited, ultra high molecular weight polyethylene (UHMWPE) is used in this embodiment. The resin material 15 is formed so that its thickness gradually increases toward the side surface 7a of the pedestal 7, and the contact portion 15a of the resin material 15 with the end portion of the bottom layer sheet 2x is inclined with respect to the horizontal plane. are doing. The magnet sheet 16 is arranged so as to face a later-described magnet sheet 17 of the sandwiching portion 11a.

The pinching portion 11a is composed of a swivel plate 18 that can swivel around a shaft 12a provided on the hinge 12, a resin material 19 attached along the swivel plate 18, and a magnetic force in a state fixed to the resin material 19. and a magnet sheet 17 that can be drawn to the magnet sheet 16. - 特許庁

The swivel plate 18 is made of metal such as stainless steel or aluminum alloy, like the side plate 13 and the bottom plate 14 described above. Although the material of the resin material 19 is not particularly limited, in the present embodiment, ultra-high molecular weight polyethylene (UHMWPE) is used as in the case of the resin material 15 described above. A contact portion 19a of the resin material 19 with the end portion of the bottom layer sheet 2x is inclined with respect to the horizontal plane following the contact portion 15a of the resin material 15 described above. A recessed portion 19 b is formed in the upper end portion of the resin material 19 . As a result, for example, by hooking a human finger or the like on the recessed portion 19b, it is easy to apply a force for separating the magnet sheet 17 from the magnet sheet 16 against the magnetic force.

The ends of the lowermost layer sheet 2x are sandwiched in a state in which misalignment with respect to the pair of sandwiching portions 11a and 11b is allowed. That is, the ends of the bottom layer sheet 2x are applied to the pair of sandwiching portions 11a and 11b in response to an external force applied to itself (for example, an external force applied along with vibration of the glass plate package 1 during transportation). It is sandwiched with a force that allows it to slide in any direction. As a result, it is possible to prevent the lowermost layer sheet 2x from being torn or damaged. The magnitude of the force with which the pair of sandwiching portions 11a and 11b sandwich the end portion of the bottom layer sheet 2x can be adjusted, for example, by changing the thickness of both magnet sheets 16 and 17 to change the magnitude of the magnetic force. is. In addition, by providing unevenness at the interface between the resin material 19 and the magnet sheet 17 and adjusting the contact area between the magnet sheet 17 deformed along the unevenness and the edge of the bottom layer sheet 2x, the magnitude of the sandwiching force can be adjusted. may be adjusted. Also, by changing the materials of both the resin members 15 and 19 to change the coefficient of friction, the magnitude of the force when the bottom layer sheet 2x starts to slide may be adjusted.

The upper end portion of the holder 11 supports the lower surface of the lowermost protruding portion 2a in supporting the plurality of protruding portions 2a that are overlapped on the holder 11. As shown in FIG. Each protruding portion 2a protrudes from the edge of the glass plate 3 and bends downward due to its own weight. The upper end portion of the holder 11 is positioned below the upper surface 7b of the base portion 7, and there is a vertical step between the two. As a result, the projecting portion 2a bends downward to the extent that it does not bend, and the end portion of the glass plate 3 is covered with the projecting portion 2a from the side. As a result, the glass plate 3 is protected from being damaged or scratched starting from the edge. In addition, due to the presence of the step, even if the glass plate 3 slips laterally, collision between the holder 11 and the lowermost glass plate 3 (collision via the lowermost layer sheet 2x) can be avoided. It's becoming

Here, in order to reliably support the projecting portion 2a by the holder 11, the thickness of the holder 11 (thickness in the direction perpendicular to the side surface 7a of the base portion 7) is preferably 10 to 30 mm, for example. . A step between the upper end of the holder 11 and the upper surface 7b of the support base 7 can be set to 10 to 20 mm, for example.

The main functions and effects of the glass plate package 1 will be described below.

In the glass plate package 1 described above, for the plurality of protective sheets 2 included in the laminate 4, protruding portions 2a protruding from the ends 3aa of the sides 3a of the glass plates 3 function as supporting portions. They are collectively supported from below by the holder 11, and the downward bending of the projecting portions 2a is avoided. As a result, bending of the projecting portion 2a around the corner portion of the glass plate 3 is avoided. Therefore, even when the protective sheet 2 positioned near the bottom layer before unpacking the glass plate package 1 is taken out by a robot or the like, bending of the projecting portion 2a is avoided, so that the object to be taken out is The projecting portion 2a of the protective sheet 2 is prevented from being caught by the corner portions of the protective sheet 2 and the glass plate 3 which are not to be taken out. As a result, it is possible to avoid the occurrence of failure to take out the protective sheet 2 .

Here, regarding the glass plate package 1 according to the first embodiment, the rate of failure to take out the protective sheet 2 due to the bending of the projecting portion 2a was verified. The verification was carried out by preparing 15 glass plate packages 1 and investigating how many of them failed to take out. The protruding lengths X and Y shown in FIG. 5 are 40 mm and 20 mm, respectively. Moreover, the thickness of the holder 11 is 20 mm. As a result of the verification, the number of the glass plate packages 1 that failed to be taken out was 0 out of 15, and no failure to take out occurred at all. On the other hand, when the same verification was performed with the holder 11 removed for comparison, 3 out of 15 bodies were defective in taking out.

A glass plate package according to another embodiment of the present invention will be described below. In the description of the other embodiments, elements that are substantially the same as the elements already described in the first embodiment are duplicated by attaching the same reference numerals to the drawings referred to in the description of the other embodiments. Description will be omitted, and only differences from the first embodiment will be described.

<Second embodiment>
As shown in FIG. 8, the second embodiment differs from the above-described first embodiment in that the bottom layer sheet 2x is not fixed to the pedestal portion 7, and the holder 11 is The only difference is that the case 20 is arranged instead. In this embodiment, the case 20 functions as a support.

The case 20 includes a rectangular parallelepiped case main body 20a fixed to the side surface 7a of the base portion 7, a case lid 20b closing an opening 20aa of the case main body 20a, and a filler 20c filled inside the case main body 20a. have. In this embodiment, the upper surface of the case main body 20a and the upper surface of the case lid 20b support the plurality of protruding portions 2a, thereby preventing the protruding portions 2a from being bent downward. Note that, instead of the case 20, for example, a box or a block may be used. The box can be configured by, for example, joining a plurality of metal plates or resin plates to form a rectangular parallelepiped shape, and the block can be configured by, for example, a rectangular parallelepiped metal block or resin block.

<Third embodiment>
As shown in FIG. 9, the third embodiment differs from the first embodiment described above in that the bottom layer sheet 2x is not fixed to the pedestal portion 7, and the holder 11 is The difference is that the support plate 21 is arranged instead. In this embodiment, the support plate 21 functions as a support.

The support plate 21 has an L-shaped cross section, and has a fixed plate portion 21a fixed to the side surface 7a of the base portion 7 and a horizontal plate portion 21b horizontally extending from the upper end of the fixed plate portion 21a. In this embodiment, the horizontal plate portion 21b supports a plurality of protruding portions 2a, thereby preventing downward bending of each protruding portion 2a. Here, as a modified example of this embodiment, the support plate 21 may be arranged along the bend of the corner portion of the glass plate 3, as shown in FIG.

In the second embodiment and the third embodiment, the end portion of the bottom layer sheet 2x is fixed to the pedestal portion 7 (the side surface 7a of the pedestal portion 7) with an adhesive tape or a magnetic sheet. When the end portion of the bottom layer sheet 2x is fixed to the pedestal portion 7 (the side surface 7a of the pedestal portion 7) by the magnet sheet, the side surface 7a of the support base 7 is made of a ferromagnetic material such as iron, cobalt, nickel, or the like. .

By the second and third embodiments described above, it is possible to obtain the same main actions and effects as the first embodiment.

Here, the glass plate package according to the present invention is not limited to the configuration described in each of the above embodiments. For example, the holder 11, the case 20, and the support plate 21 are removed from the first to third embodiments, and instead the area of the upper surface 7b of the pedestal 7 is made larger than the area of the glass plate 3, and the area of the upper surface 7b is increased. A region protruding from the edge of the glass plate 3 may function as a supporting portion.

In each of the above-described embodiments, the holder 11, the case 20, and the support plate 21 functioning as support portions are arranged only along the corner portions of the glass plate 3. It may be arranged at a position other than along the part. For example, these members may be arranged so as to be positioned between adjacent regulation plates 10 .

Further, in each of the above-described embodiments, protruding portions 2a protruding from the ends of the glass plate 3 are formed at all four ends of the rectangular protective sheet 2. The protruding portion 2a may be formed only at the end. From the viewpoint of protecting the edges of the glass plate 3, it is preferable that the protrusions 2a are formed on all four edges of the protective sheet 2. FIG. From the viewpoint of properly covering the edge of the glass plate 3 with the protruding portion 2a, the protruding length of the protruding portion 2a (protruding lengths X and Y shown in FIG. 5) should be 10 mm or more. is preferred. Moreover, from the viewpoint of securely holding the protruding portion 2a by the holder 11, the protruding length of the protruding portion 2a is preferably 30 mm or more. From the viewpoint of cost reduction, the upper limit of the protrusion length of the protruding portion 2a is preferably 80 mm or less, more preferably 60 mm or less, and most preferably 40 mm or less.

1 glass plate package 2 protective sheet 2a protruding portion 3 glass plate 3a edge 3aa edge 3b edge 3ba edge 4 laminate 5 pallet 7 pedestal 7b upper surface of pedestal 10 regulation plate 11 holder (support part)
20 case (supporting part)
21 support plate (support part)
X overhang length Y overhang length

Claims (5)

A glass plate comprising: a laminate obtained by laminating a rectangular glass plate and a protective sheet having protruding portions protruding from the edge of the glass plate in a flat position; and a pallet for loading the laminate. a package,
The pallet includes a support portion that supports the protruding portions of the plurality of protective sheets included in the laminate from below,
The support portion is arranged along at least a corner portion of the lowermost glass plate included in the laminate,
The pallet has a pedestal that supports the laminate from below,
A glass plate package, wherein an upper end portion of the support portion is positioned below an upper surface of the pedestal portion that supports the laminate. A glass plate comprising: a laminate obtained by laminating a rectangular glass plate and a protective sheet having protruding portions protruding from the edge of the glass plate in a flat position; and a pallet for loading the laminate. a package,
The pallet includes a support portion that supports the protruding portions of the plurality of protective sheets included in the laminate from below,
the support portion is arranged only along the corner portion of the lowermost glass plate included in the laminate ;
The pallet includes a regulating member that regulates horizontal movement of the plurality of glass plates included in the laminate,
A glass plate package, wherein the regulating members are arranged so as to be positioned between adjacent corner portions of the glass plates included in the laminate. The pallet has a pedestal that supports the laminate from below,
3. The glass sheet package according to claim 2, wherein the upper end portion of the support portion is located below the upper surface of the base portion that supports the laminate. At least the edge of the protruding portion having a longer protruding length, out of the end of one side and the end of the other side forming the corner portion of the lowermost glass plate. 4. The glass plate package according to any one of claims 1 to 3, wherein the glass plate package is arranged along the part. The support portion is arranged along only one of the edge portion of one side and the edge portion of the other side forming the corner portion of the lowermost glass plate. The glass plate package according to any one of claims 1 to 4 .

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